0.12.4

• 935df91 - Compatibility with latest PHPStan
• bdea3ef - Use the maintained version of php-parallel-lint
• 774d190 - Travis > Test on PHP 7.3 and 7.4
• 4ef28a7 - Updated coding standard that can run on PHP 7.4
• e55cdeb - Bump minimum versions to prevent deprecations when running in lowest
• 57c0af3 - Use GitHub Actions instead of Travis CI
• c714b07 - Automatic release workflow